Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4311472 | Marine propulsion system for two propellers | Heinz M. Hiersig | 1982-01-19 |
| 4229990 | Transmission of ships | Wolfgang Sudhoff | 1980-10-28 |
| 4182200 | Transmission gear with power branching | Volkmar Tepper | 1980-01-08 |